Baute Bug Blog

Two pests that are starting to appear in Ontario fields include cereal leaf beetle and alfalfa weevil. Cereal leaf beetle: Both adults and larvae can cause damage by chewing long strips of tissue between the leaf veins, though most of the damage is done by the larvae in June. The larvae look somewhat like slugs or a drop of black…

Some US states to our south have been reporting high numbers of black cutworm moths in their pheromone traps and are starting to see some black cutworm injury in newly emerging corn fields. These moths are carried into Ontario via storm fronts. Once they arrive the adult moths look for weedy patches in fields to lay their eggs on. The…

Those planting neonicotinoid treated corn or soybean seed with a vacuum planter that requires a seed flow lubricant MUST use Fluency Agent. Talc or graphite are not permitted. Exceptions include: 1. planters that don’t need seed flow lubricant (i.e. you don’t have to start using fluency agent if you didn’t use graphite or talc in the past) 2. finger pickup…

There is clearly a renewed interest in trapping for Western bean cutworm (WBC) in 2015. This is understandable, given that WBC caught us off guard in 2014 with ear damage being reported across much of Ontario, beyond our typical hot spot areas. Sign up to the Ontario WBC Trap Network: We will be mapping trap captures again this year. Those…

Let’s start on a positive note. We did not find any brown marmorated stink bugs (BMSB) during our corn or soybean field survey this year. Though the eager summer students are always disappointed that they come back each year with nothing to show for their training and scouting efforts, I am always relieved. The not-so-great news is that they are…

Many Ontario Fields Don’t Need Neonicotinoid Treated Seeds Assess Your Risk for Early Season Insect Damage Fill out the Pest Evaluation Checklist for Corn or Soybean for your farm at ontario.ca/bx1n Use this Pest Evaluation Checklist to target the use of insecticide seed treatments on corn and soybean seed for ­ fields with identi­fied risks. Use the Guide to Early…

Author: Jocelyn Smith, University of Guelph Ridgetown Campus “Check your fields for WBC and ear rots now and consider harvesting early to stop mould growth. Adjust your combine to discard lightweight mouldy kernels and dry mouldy corn as soon as possible.” If you had trouble finding Western bean cutworm (WBC) egg masses when scouting back in late July and early…

Either our own resident WBC populations did fine over the winter or the recent storm fronts brought in the bunch of moths from the US or a combination of the two. But reports are coming in that fields between Thamesville and Bothwell and near Rodney have reached threshold, well, sort of. What is messing up everyone’s ability to determine which…

Authors: Jocelyn Smith and Andrea Hitchon, University of Guelph Ridgetown Campus The time to start scouting corn for corn rootworm has arrived! There are a few important objectives for scouting for rootworm injury including: scouting can help protect yield, plan control measures for next year, and detect potential cases of resistance to Bt traits. The Canadian Corn Pest Coalition is…

We are starting our 2014 field survey for the new invasive insect pest, brown marmorated stink bug. In particular, we are looking for corn and soybean fields that meet the criteria below. We will scout for the pest within the first 30 rows of field (where we expect to first find the insect), as well as any other hosts that…

Author: Jocelyn Smith, University of Guelph, Ridgetown Campus Growers in the high WBC risk areas (sandy soils) saw heavy infestations of WBC in 2013 and many were surprised by the survival and amount of damage by WBC on Bt corn. Bt corn hybrids that express the Cry 1F insecticidal protein such as the Herculex® and Genuity® products are expected to…

Low levels of armyworm, cereal leaf beetles and grass sawflies have been spotted in various wheat fields over the last week. Scout to make sure these don’t get out of hand. With any of these, protecting the flag leaf is most important. Armyworm and grass sawflies clip the wheat head off too. Armyworm feed at night so scouting at dusk…

When springs are cool and wet, it results in two things. 1) Difficulty with getting good weed control in before planting and 2) Pushing planting into cooler soils that may cause the seed to sit for a while. Both of these can increase the risk for early season pest issues. Here are some of the pests you may see when…

There continues to be some mixed messaging going on in terms of when and where Bayer Fluency Agent must be used this growing season. Here are the facts as stated by PMRA. NOTE the exceptions below: 1) The mandatory use of Fluency Agent only applies when planting corn and soybeans. All other crops are exempt. 2) Fluency Agent must be…

“Field Crop News” is an archive of information dedicated to the production of over 8.5 million acres of field crops in Ontario and a forum for which producers, researchers and industry personnel can share information and ideas. The crop technology team with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), faculty at the University of Guelph and Ontario field crop producers continually work together to find ways to improve field crop production. The key learning and outcomes from these collaborations are captured at “Field Crop News”.